On 27.04.2009, at 09:42, Meikel Brandmeyer wrote: > AFAIU, struct-maps are not an optimisation for efficiency of the > key lookup, but for the storage space of the keys. So "timings" > should probably read "memstats".
If memory is the issue, then creating a single instance of the metadata map for all values of a type should be sufficient. As for timing, key lookup is faster for struct maps than for standard maps if the number of keys defined in the struct is much smaller than the total number of keys in the map. This is probably not the case for most real-life metadata maps. Key lookup can be improved even more using accessor functions, but that would imply relying on the metadata being a struct-map for a given struct, which doesn't look like a great idea. Konrad. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
